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NDA - Mixed Mathematics Test 17
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  • Question 1/25
    1 / -0.33
    If C(28, 2r) = C(28, 2r – 4), then what is r equal to?
  • Question 2/25
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    The sum of
  • Question 3/25
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    What is be equal to?
  • Question 4/25
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    Solution set of the inequality  :
  • Question 5/25
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    If , then find the interval of :
  • Question 6/25
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    The cofactor of the element 4 in the determinant  is
  • Question 7/25
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    The value of  is-
  • Question 8/25
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    Odds in favour of an event  are 2 to 1 and odds in favour of  are 3 to 1 . Consistent with this information the smallest and largest values for the probability of an event  are given by
  • Question 9/25
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    If α and β are the roots of the equation , then find the equation whose roots are .
  • Question 10/25
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    In a geometric progression consisting of positive terms, each term equals the sum of the next two terms. Then, the common ratio of this progression equals.
  • Question 11/25
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    Two finite sets have m and n elements, then total number of subsets of the first set is  more than the total number of subsets of the second.  The values of m and n are
  • Question 12/25
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    The mean of 100 observations is 50 and their standard deviation is 5.The sum of the squares of all observations is
  • Question 13/25
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    In a binary number system, assume that  and  then in decimal system  , which is equal to:
  • Question 14/25
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    Find
  • Question 15/25
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    If  ,  and  , then  is
  • Question 16/25
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    If , then which one the following option is correct.
  • Question 17/25
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    For what values of  is the rate of increase of  twice the rate of increase of  ?
  • Question 18/25
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    If  where k is a constant of integration, then A+B+C equals:
  • Question 19/25
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    Integrating factor of differential equation
  • Question 20/25
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    The area enclosed between the curve  and the coordinate axes, is
  • Question 21/25
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    The image of the point  in the plane , is
  • Question 22/25
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    The equation of the plane passing through the line of intersection of the planes  and perpendicular to the plane  is given by
  • Question 23/25
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    The angle of elevation of a cloud C from a point P, above a still lake is . If the angle of depression of the image of C in the lake from the point P is , then PC (in m) is equal to:
  • Question 24/25
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    Consider the following statements :

    1.

    2. There exist  where  such that  .

    Which of the above is/are correct?

  • Question 25/25
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    The value of  equals to
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